docs: def __search(self, pt=""):
  
          """
          Method responsible for searching using YouTube API.
  
          Parameters
          ----------
          pt : str
              Token of search results page. If ``None``, then the first page is downloaded.
  
          Returns
          -------
          results : dict
              Parsed JSON returned by YouTube API.
          """
  
          if not self.search_params.get('q') and not self.search_params.get('channelId'):
              return {'items': []} # no valid query - no results.
  
          api_fixed_url = "https://www.googleapis.com/youtube/v3/search?part=snippet&type=video&fields=items(id%2Ckind%2Csnippet)%2CnextPageToken%2CprevPageToken&"
  
          d = {"key": self.api_key, "pageToken": pt}
          d.update(self.search_params)
          url = api_fixed_url + urlencode(d)
  
          try:
              get = requests.get(url)
          except requests.exceptions.ConnectionError:
              raise ConnectionError
  
          if get.status_code != 200:
              return {'items': []} # no valid query - no results.
  
          return get.json()